Home / 752,163.66-1,037,967.14-421,014.95

Finding the Fourth Proportional to 752,163.66, 1,037,967.14 and 421,014.95

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Solution

The fourth proportional to 752,163.66, 1,037,967.14 and 421,014.95 is: 580,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,163.66 : 1,037,967.14 = 421,014.95 : x
  2. Step 2: Convert to fraction form
    752,163.66/1,037,967.14 = 421,014.95/x
  3. Step 3: Cross multiply
    752,163.66x = 1,037,967.14 × 421,014.95
  4. Step 4: Simplify right side
    752,163.66x = 436,999,679,411.45
  5. Step 5: Solve for x
    x = 436,999,679,411.45/752,163.66
  6. Step 6: Final answer
    x = 580,990.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.